|
Title:
|
Fracture behaviour of an EPBC film. Study of the relationships between J0 and EWF
|
|
Author:
|
Martínez Benasat, Antonio; Delgado, A; Segovia, Angélica; Sánchez Soto, Miguel; Salazar, Alicia
|
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica; Universitat Politècnica de Catalunya. POLYCOM - Polimers i compòsits: tecnologia |
|
Abstract:
|
The fracture behavior for a film of ethylene-propylene block copolymer has been studied applying the essential work of
fracture method. Double-Edge Notch Tensile (DDENT) specimens were sharpened by two different techniques. The
first technique has been using the conventional method of the razor blade; the second one, using a femtolaser ablation
beam. The notch tip radiuses were quite similar. In the case of the razor blade method, some plastic deformation at the
crack tip was found. The essential work of fracture (we) value for femtolaser sharpened specimens was significantly
shorter than for the razor blade sharpening specimens. In this order, the slopes corresponding to the plastic work
dissipation factor (wp) were quite similar. Results aim to say that the initiation point and the corresponding energy for
which we is achieved may be considered as the energy of initiation (J0) for the crack growing propagation. The
propagation behavior seems to be the same for both notch sharpening methods. The J0 value at initiation and we were
quite similar; the wp terms are analyzed from J-R plots. |
|
Abstract:
|
Peer Reviewed |
|
Subject(s):
|
-Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
-Àrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials::Assaig de fractura
-Copolymers -- Mechanical properties
-Composite materials--Fracture
-EWF
-EPBC film
-Fracture initiation
-Copolímers -- Propietas mecàniques
-Materials compostos -- Fractura |
|
Rights:
|
|
|
Document type:
|
Article - Published version
Conference Object |
|
Share:
|
|
